“The increasing snow load will also raise the likelihood of triggering large to very large persistent deep slab avalanches,” the advisory said. “Safe travel will demand a conservative approach to terrain management.”

Marra died on scene.

“We are saddened to report this fatality, and the staff at Jackson Hole Mountain Resort join me in expressing our deepest sympathies to the family and friends of the victim,” Jackson Hole Mountain Resort President Jerry Blann said in a news release.